fix: stop styled lines from indenting the text that follows

An incident with nobody assigned and nobody holding it rendered its
detail view like this:

    Assigned:   nobody
                        Acked:      not acknowledged

lipgloss pads every line of a styled block out to the width of its widest
line. A trailing newline inside Render therefore produces a second line
made entirely of padding, and the next write to the builder starts after
that padding instead of at the left margin. Twelve call sites put the
newline inside.

Adding a line() helper that keeps the newline outside, and using it
throughout the content builders.

Shipped in v0.4.0 and only visible on the unassigned or unacknowledged
path, which is why it survived the pre-release check: that run had
somebody on call, so the incident was assigned and acknowledged and both
lines took the styled-with-value branch instead.

view_test.go covers the content builders, including the two states that
were broken and an expired snooze not being reported as a snooze.

internal/tui/view.go

@@ -365,6 +365,16 @@ func (m Model) renderStats() string {
 	return m.statsViewport.View()
 }
 
+// line renders s in a style and terminates it.
+//
+// The newline has to stay outside Render: lipgloss pads every line of a styled
+// block out to its widest line, so a trailing newline inside the block produces
+// a second line made entirely of padding, and whatever is written next starts
+// after that padding instead of at the left margin.
+func line(style lipgloss.Style, s string) string {
+	return style.Render(s) + "\n"
+}
+
 // ── Content builders ───────────────────────────────────────────────────────
 
 func buildIncidentDetailContent(inc api.Incident, timeline []api.IncidentEvent, cursor, width int) string {
@@ -391,7 +401,7 @@ func buildIncidentDetailContent(inc api.Incident, timeline []api.IncidentEvent,
 	if inc.AssignedTo != "" {
 		b.WriteString(fmt.Sprintf("  Assigned:   %s\n", styleBold.Render(inc.AssignedTo)))
 	} else {
-		b.WriteString(styleMuted.Render("  Assigned:   nobody\n"))
+		b.WriteString(line(styleMuted, "  Assigned:   nobody"))
 	}
 
 	if inc.AcknowledgedByID != nil {
@@ -399,14 +409,14 @@ func buildIncidentDetailContent(inc api.Incident, timeline []api.IncidentEvent,
 		if inc.AcknowledgedAt != nil {
 			ackAt = "  at " + inc.AcknowledgedAt.UTC().Format("2006-01-02 15:04 UTC")
 		}
-		b.WriteString(styleResolved.Render(
-			fmt.Sprintf("  Acked:      %s%s\n", inc.AcknowledgedBy, ackAt)))
+		b.WriteString(line(styleResolved,
+			fmt.Sprintf("  Acked:      %s%s", inc.AcknowledgedBy, ackAt)))
 	} else {
-		b.WriteString(styleMuted.Render("  Acked:      not acknowledged\n"))
+		b.WriteString(line(styleMuted, "  Acked:      not acknowledged"))
 	}
 
 	if inc.IsSnoozed() {
-		b.WriteString(styleSnoozed.Render(fmt.Sprintf("  Snoozed:    until %s  (%s)\n",
+		b.WriteString(line(styleSnoozed, fmt.Sprintf("  Snoozed:    until %s  (%s)",
 			inc.SnoozedUntil.UTC().Format("2006-01-02 15:04 UTC"), humanUntil(now, *inc.SnoozedUntil))))
 	}
 
@@ -419,8 +429,8 @@ func buildIncidentDetailContent(inc api.Incident, timeline []api.IncidentEvent,
 			inc.ResolvedAt.UTC().Format("2006-01-02 15:04 UTC"), humanAgo(now, *inc.ResolvedAt), source))
 	}
 	if inc.ArchivedAt != nil {
-		b.WriteString(styleMuted.Render("  Archived:   " +
-			inc.ArchivedAt.UTC().Format("2006-01-02 15:04 UTC") + "\n"))
+		b.WriteString(line(styleMuted, "  Archived:   "+
+			inc.ArchivedAt.UTC().Format("2006-01-02 15:04 UTC")))
 	}
 	b.WriteString("\n")
 
@@ -436,7 +446,7 @@ func buildIncidentDetailContent(inc api.Incident, timeline []api.IncidentEvent,
 	// Member alerts
 	b.WriteString(divider(fmt.Sprintf("Alerts (%d)", len(inc.Alerts)), width))
 	if len(inc.Alerts) == 0 {
-		b.WriteString(styleMuted.Render("  No alerts.\n"))
+		b.WriteString(line(styleMuted, "  No alerts."))
 	} else {
 		for _, a := range inc.Alerts {
 			marker := styleFiring.Render("●")
@@ -458,7 +468,7 @@ func buildIncidentDetailContent(inc api.Incident, timeline []api.IncidentEvent,
 	notes := noteEvents(timeline)
 	b.WriteString(divider(fmt.Sprintf("Timeline (%d events, %d notes)", len(timeline), len(notes)), width))
 	if len(timeline) == 0 {
-		b.WriteString(styleMuted.Render("  Nothing recorded yet.\n"))
+		b.WriteString(line(styleMuted, "  Nothing recorded yet."))
 	} else {
 		noteIndex := 0
 		for _, e := range timeline {
@@ -584,7 +594,7 @@ func buildAlertDetailContent(alert api.Alert, width int) string {
 			styleBold.Render(fmt.Sprintf("#%d", *alert.IncidentID)),
 			styleMuted.Render("press i to open it")))
 	} else {
-		b.WriteString(styleMuted.Render("  Incident:   none\n"))
+		b.WriteString(line(styleMuted, "  Incident:   none"))
 	}
 	b.WriteString("\n")
 
@@ -606,8 +616,8 @@ func buildAlertDetailContent(alert api.Alert, width int) string {
 
 	// Alerts carry no workflow state: it all lives on the incident.
 	b.WriteString(divider("", width))
-	b.WriteString(styleMuted.Render(
-		"  Alerts are read-only — acknowledge, assign, note and resolve on the incident.\n"))
+	b.WriteString(line(styleMuted,
+		"  Alerts are read-only — acknowledge, assign, note and resolve on the incident."))
 
 	return b.String()
 }
@@ -627,7 +637,7 @@ func buildStatsContent(incidents *api.IncidentStats, top []api.TopAlert, byHour
 	// Response times first: they are what a rota is actually judged on.
 	b.WriteString(divider("Incident Response", width))
 	if incidents == nil {
-		b.WriteString(styleMuted.Render("  No data.\n"))
+		b.WriteString(line(styleMuted, "  No data."))
 	} else {
 		b.WriteString(fmt.Sprintf("  %-28s %s\n", "Incidents total",
 			styleBold.Render(fmt.Sprintf("%d", incidents.Total))))
@@ -642,14 +652,14 @@ func buildStatsContent(incidents *api.IncidentStats, top []api.TopAlert, byHour
 		b.WriteString(fmt.Sprintf("  %-28s %s\n", "Mean time to resolve",
 			styleBold.Render(humanSeconds(incidents.MTTRSeconds))))
 		if incidents.MTTASeconds == nil || incidents.MTTRSeconds == nil {
-			b.WriteString(styleMuted.Render("  (— means nothing has been acknowledged or resolved yet)\n"))
+			b.WriteString(line(styleMuted, "  (— means nothing has been acknowledged or resolved yet)"))
 		}
 	}
 	b.WriteString("\n")
 
 	b.WriteString(divider("Top Alerts", width))
 	if len(top) == 0 {
-		b.WriteString(styleMuted.Render("  No data.\n"))
+		b.WriteString(line(styleMuted, "  No data."))
 	} else {
 		maxCount := top[0].Count
 		for i, a := range top {
@@ -672,7 +682,7 @@ func buildStatsContent(incidents *api.IncidentStats, top []api.TopAlert, byHour
 			b.WriteString(fmt.Sprintf("  %2dh  %-*s %d\n", h.Hour, barWidth, bar, h.Count))
 		}
 	} else {
-		b.WriteString(styleMuted.Render("  No data.\n"))
+		b.WriteString(line(styleMuted, "  No data."))
 	}
 	b.WriteString("\n")
 
@@ -689,7 +699,7 @@ func buildStatsContent(incidents *api.IncidentStats, top []api.TopAlert, byHour
 			b.WriteString(fmt.Sprintf("  %-4s  %-*s %d\n", d.DayName[:3], barWidth, bar, d.Count))
 		}
 	} else {
-		b.WriteString(styleMuted.Render("  No data.\n"))
+		b.WriteString(line(styleMuted, "  No data."))
 	}
 
 	return b.String()
@@ -723,7 +733,7 @@ func (m Model) renderUserCreate() string {
 
 func (m Model) renderAPIKeyMenu() string {
 	header := fmt.Sprintf("\n  API keys for %s\n", styleBold.Render(m.selectedUser.Username))
-	warning := styleMuted.Render("  Keys cannot be listed — only new keys can be created,\n  or existing ones revoked by their integer ID.\n")
+	warning := line(styleMuted, "  Keys cannot be listed — only new keys can be created,\n  or existing ones revoked by their integer ID.")
 	options := "\n" +
 		styleAccent.Render("  n") + "  · create a new API key\n" +
 		styleAccent.Render("  r") + "  · revoke a key by ID\n"
@@ -757,7 +767,7 @@ func (m Model) renderAPIKeyReveal() string {
 
 func (m Model) renderAPIKeyRevokeByID() string {
 	header := fmt.Sprintf("\n  Revoke API key for %s\n", styleBold.Render(m.selectedUser.Username))
-	hint := styleMuted.Render("  Enter the integer key ID (shown when the key was created).\n")
+	hint := line(styleMuted, "  Enter the integer key ID (shown when the key was created).")
 	label := styleSelected.Render("  Key ID:  ")
 	return header + "\n" + hint + "\n" + label + m.apiKeyRevokeInput.View() + "\n"
 }